18QHTF21-1.96608-PD

Overview

The 18QHTF21-1.96608-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 1.96608 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with integrated standby functionality
• Delivers stable LVCMOS output signals for digital circuit synchronization

Applications

• General-purpose digital timing circuits
• Embedded systems requiring precise clock references
• Consumer electronics with space-constrained designs

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD no-lead package matches your PCB footprint requirements. Check datasheet specifications for operating temperature ranges and load capacitance values before integration into final designs.

Selection Notes

Select this component when a 1.96608 MHz reference is required for LVCMOS-compatible interfaces. Consider the 1.8V supply constraint and standby feature for power-sensitive applications. Ensure the small form factor aligns with board layout restrictions compared to larger through-hole alternatives.

Part Context

This model belongs to the Mercury Electronic 18QHTF series of surface-mount oscillators. The series is characterized by quartz-based stability and compact SMD packaging. Mercury Electronics leverages decades of expertise in frequency control products to provide reliable timing solutions for various electronic industries.

Replacement Considerations

Direct substitutes may include other 1.96608 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical parameters such as current consumption and startup time before swapping components.